John william hartley



l. W. HARTLEY.

CUPOLA CHARGING DEVlCE.

APPLICATION FILED NOV. 14, 191B.

Patented Nov. 18, 1919.

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JOHN WILLIAM HARTLEY, OF STONE, ENGLAND, ASSIGNOR 0F ONE-HALF T0 W. 80 T- AVERY, LIMITED, OF SMETHWICK, ENGLAND.

CUPOLA-CHABGING DEVICE.

Specification of Letters Patent.

Patented Nov. 18, 1919.

To all whom it may concern:

Be it known that I, JOHN WILLIAM HARTLEY, asubject of the King of Great Britain, and residing at Drysdale House, Newcastle Road, Stone, in the county of Stafford, England, engineer, have invented a new and useful Improvement in Cupola- Charging Devices; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to a method of readily handling and delivering materials which require to be mixed by weight in cer tain proportions and delivered to a mixer or the like. This invention will be described as applied to a cupola where the fuel and iron are delivered to be weighed in certain proportions with each other and then delivered into the cupola feed opening. This invention comprises a proportional weighing and delivering apparatus for charging cupolas or the like wherein the charge receiving receptacles are connected to weighing levers, said levers being connected together to effect a predetermined proportional leverage, the levers being in turn connected to a weight indicating mechanism which may be provided with an alarm or signal to efiect audible or visible notification of the completion of the charge. The said levers and receptacles preferably are suspended from a crane arm or arms whereby the receptacles can be traversed to and from the charge receiving position and the feed opening of the cupola.

This invention will now be described with reference to the accompanying drawings which diagrammatically illustrate one construction thereof as applied to a cupola charging apparatus which is assumed to be charging coke and iron to the cupola in predetermined proportions.

Figure 1 is a side elevation of as much of the a paratus as is necessary to an understanding of the features of this invention and Fig; 2 is a plan of Fig. 1.

On each side of the cupola feed opening 3 and in a plane therewith, are two vertical crane posts Land 5, the posts being connected at their upper ends by means of the brackets 6 and 7 to the periphery of the cupola 8. Crane arms 9 and 10 extend from the posts 4 and 5, the arms being of equal length and being pivotally mounted upon the said posts, the outer end of each crane arm 1s provided with a swivel 11. The swlvels 11 are connected to a duplex bar 12, the distance between the swivels 11 being the distance between the vertical axes of the posts 4 and 5. Beneath the bar 12 and parallel therewith and suspended therefrom by means of links 13 and 14 are two levers 15 and 16, the said levers being connected together at their inner ends by means of a link 17 which is connected to the said levers by means of the traversable blocks or nuts 18 and 19 which can be adjusted upon the levers 15 and 16 by means of the screws 20 and 21, whereby the proportional leverage of the lever 15 to that of the lever 16 can be varied to suit different requirements, the compound leverage, however, remaining constant. Suspended from each of the levers 15 and 16 is a charge receiving skep, the skep 22 being suspended from the lever 15 by means of the link 23 and the skep 24 being suspended from the lever 16 by the link 25. The lever 15 is connected by means of the link 26 to an automatic weight indicating mechanism 27 which in this instance is presumed to have a spring resistance of known type, the pointer 28 indicating against the graduations 29 on the dial of the apparatus 27. A contact point 30 is located at the zero position of the dial and another contact point 31 is located at a predetermined point on the dial, this point being adjustable around the dial to suit different requirements. The contacts 30 and 31 are connected by wires 32 and 33 respectively to an electric bell 34, and when the pointer 28 is in the position seen in Fig. 1 of the drawing, or has reached the contact point 31 a circuit is completed through the bell 34: and audible notification is conveyed to the charge operator that the required weight has been received by one or other of the skeps 22 or 24, as will be hereinafter more fully explained.

It will be seen more particularly on reference to Fig. 2 that-when the skep 22 is located within the cupola opening 8 that the skep 24 is in the charge receiving position, and that by swinging the crane arms 9 and 10 through the arcs indicated by dotted lines in Fig. 2 that when the skep 24 has reached the cupola opening 3 the skep 22 will be in its charge receiving position whereby the charging and discharging operations are readily effected. It will be observed also that the skep 22 is suspended from the lever 15 between the fulcrum and the point of connection of the lever to the weight indicator, whereas the skep 24 is suspended from the lever 16 at a point beyond the fulcrum of the lever 16 whereby any charge received by the skep 22 pulls down the connecting link 26 and tends to raise the skep 24; contrawise any charge received by the skep 24 reduces the pull on the connecting link 26 and tends to neutralize any charge received by the skep 22. Assuming that the iron charge is first received by the skep 22 the pointer 28 would be advanced from the zero point seen in Fig. 1 and charging of the skep 22 would continue until the pointer reached the contact 31 the position of which has been predetermined. At this point the operator ceases to charge iron into the skep 22 and now commences to charge the skep 24 with coke which causes a return of the pointer 28 and charging of the skep 24 continues until the pointer again reaches the zero contact 30, when the bell 34 gives notification that the charging operation is complete. The skeps 22 and 24 are then discharged into the cupola in the manner pre viously referred to and a recharging of the skeps takes place.

The suspension links 13 and 14 form the fulcrum bearings of the levers 15 and 16 re spectively and may be slidably-mounted on the double bar 12, a suitable slidable provision being also made for the fulcrum knife edges of the levers. The purpose of this provision is that when required-the power of the levers may be varied, so that any desired proportion of coke and iron may be weighed. It will be observed that should any excess of iron be added to the skep 22 a proportional excess of coke will require to be added to the skep 24 in order to restore the balance in the leverage system and to return the pointer 28 to zero.

It will be obvious that many modifications maybe made in the construction and arrangement of my apparatus according to the difl'erent requirements without departing fromthescope of this inventiomvand thatthe accon'ipanying drawings only illustrate diagrammatically a means of carrying this invention into effect. The features of construction of this invention are well known in the art and will not require further description.

What I claim is v I l. A proportional weighing and delivering apparatus for charging eupolas or the like comprising charge receiving receptacles, weighing levers to which said receptacles are connected, said levers being connected together for compound operation and having connection to a weight indicating mechanism, the charge received by one receptacle neutralizing the charge received by the other receptacle.

2. A proportional weighing and delivering apparatus for charging cupolas or the like comprising in combination a pivotal arm mounted relative to the cupola inlet, a bar connected to said arm, weighing levers supported by said bar, charge receiving receptacles connected to said levers which act in oppositionone to the other, and a weight indicating mechanism connected to said levers.

3. A proportional weighing and deliverin apparatus for charging cupolas or the like comprising in combination a pivotal arm mounted relative to the cupola inlet, a bar connected to said arm, weighing levers supported by said bar, charge receiving receptacles connected to said levers, which act in opposition one to the other, a weight indicating mechanism connected to said levers,

and an alarm or signal connected to said weight indicating mechanism.

4. A proportional weighing and delivering apparatus for charging cupolas or the like comprising in combination two pivotally mounted arms, a bar pivotally connected to and supported by said arms, weighing levers suspended from the said bar, linkage connecting the said levers to insure compound movement, charge receiving receptacles suspended from said levers which act in opposition one to the other, a weight indicating mechanism connected to said levers, and an alarm or signal operative conjunctive with said indicating mechanism.

5. A proportional weighing and delivering apparatus for charging cupolas or the like comprising in combination two pivotally mounted arms, a bar pivotally connected to and supported by said arms, weighing levers suspended from the said bar, linkage connecting the said levers to insure compound movement, charge receiving receptacles suspended from said levers which act in opposition one to the other, a weight indicating mechanism connected to said levers, an alarm orsignal operative conjunctive-with said indicating mechanism, and an adjustable connection between the weighing levers whereby the proportionate leverage of the levers can be varied.

6. A proportional weighing and delivering apparatus for charging cupolas or the like comprising in combination a pivotal arm mounted relative to the cupola inlet, a bar connected to said arm, weighing levers supported by said bar, charge receiving receptacles connected to said levers Which act in opposition one to the other, a weight indicating mechanism connected to said levers, and means for adjusting the fulcrum of the said levers.

In testimony whereof I have signed my 15 name to this specification in the presence of two subscribing witnesses.

JOHN WILLIAM HARTLEY.

Witnesses:

J AMES DOBSON, GEORGE E. Forums. 

